I would have to say - after my issues in July 2016 - Google at least helped me get to a doctor, despite not knowing what I was going through.
I had a really bad sinus infection. People noticed that half of my face was distorted. I just felt like I had a sinus infection. Well, I get home from a men's group meeting and am watching television. In that side of my face (the left), I start losing the vision in half my eye (the lower half). It would fade in and out - from normal, to a half snow-pattern to black. It happened twice and I start looking up what is going on. I also had half my tongue swollen. It said I was having either allergies or a heart issue and it said - go to a doctor. Well, it was 1am at the time....I ended up going to the ER since they were the only ones open. I couldn't let it slide. I had a sonogram done and the fade happened a third time resulting in an eye hemorrhage (burst blood vessel). Numerous tests (I will probably post about this more when it comes up), but all they found was an elevated blood pressure. Long story short, I ended up getting a general doctor, put on blood pressure meds, and the whole episode was due to allergies from a bad electronic air purifier. I turned it off and within 24 hours, everything was gone but the hemorrhage in my eye. That took time to disperse.
That would be a legitimate reason to go to a doctor. If you think the symptoms are mild and will pass, there is no reason to worry.